Microstructure and mechanical properties of wrought and additive manufactured Ti-6Al-4V cylindrical bars

Shunmugavel, Manikandakumar, Polishetty, Ashwin and Littlefair, Guy 2015, Microstructure and mechanical properties of wrought and additive manufactured Ti-6Al-4V cylindrical bars, Procedia technology, vol. 20, pp. 231-236, doi: 10.1016/j.protcy.2015.07.037.

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Title Microstructure and mechanical properties of wrought and additive manufactured Ti-6Al-4V cylindrical bars
Author(s) Shunmugavel, Manikandakumar
Polishetty, AshwinORCID iD for Polishetty, Ashwin orcid.org/0000-0002-8572-6024
Littlefair, Guy
Journal name Procedia technology
Volume number 20
Start page 231
End page 236
Total pages 6
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2015
ISSN 2212-0173
Summary Titanium alloys are widely used in various engineering design application due to its superior material properties. The traditional manufacturing of titanium products is always difficult, time consuming, high material wastage and manufacturing costs. Selective laser melting (SLM), an additive manufacturing technology has widely gained attention due to its capability to produce near net shape components with less production time. In this technical paper,microstructure,chemical composition,tensile properties and hardness are studied for the wrought and additive manufactured SLM cylindrical bar. Microstructure,mechanical properties and hardness were studied in both the longitudinal and transverse directions of the bar to study the effect of orientation. It was found that additive manufactured bar have higher yield strength, ultimate tensile strength and hardness than the wrought bar. For both conventional and SLM test samples, the yield strength, ultimate tensile strength and hardness was found to be high in the transverse direction. The difference in the properties can be attributed to the difference in microstructure as a result of processing conditions. The tensile fracture area was quantified by careful examination of the fracture surfaces in the scanning electron microscope.
Notes Proceedings of The 1st International Design Technology Conference, DESTECH2015, Geelong
Language eng
DOI 10.1016/j.protcy.2015.07.037
Field of Research 091006 Manufacturing Processes and Technologies (excl Textiles)
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30080323

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